YSI® 556 Multi-Probe Meter

Multi-Probe Meter is Convenient and Portable

Simultaneously measures dissolved oxygen, pH, conductivity, temperature and ORP. Ideal for testing water in a variety of applications.
556 Multi-Probe Meter includes 2.00-mil PE (Polyethylene) Membrane Kit that offers a flow dependence of 18% and a response time of 18 seconds. Cables are required for use and are sold separately (Nos. 222455-222457). Stores more than 49,000 data sets with date and time stamp. Four C-cell batteries provide up to 60 hours of power or use the Rechargeable NiMH Battery Pack (No. 222467), sold separately, for repeated use and quick recharges.